Image Amplification and Novelty Filtering with a Photorefractive
Polymer

Arosha Goonesekera, Daniel Wright and W.E. Moerner

Energy transfer between two laser beams writing a volume hologram
in a photorefractive polymer composite is applied to video rate
optical processing applications. A net increase in image intensity
as high as a factor of 37 can be observed within one video frame
time (33 ms) using a total beam intensity of 1 Wcm-2 and 77 Vmm-1
applied electric field. Moving object detection (novelty filtering)
is also demonstrated.